The more I think about it, the Wiimote is a perfect application for any 8 bit uC. The Wiimote hardware has data storage, wireless connectivity via Bluetooth, an accelerometer, InfraRed sensors, buttons, and LEDs. This is the the perfect micro-controller application because it's controlling and interconnecting other hardware devices. The uC does enough processing to make sense out of these raw device inputs and relays info to the main console.